K&N adjustable fitting Universal Air Filters are made with flange inserts which adjust the filter's flange to one of three inside flange diameters. The flange on these filters is made with ultra-strong molded pliable rubber which absorbs vibration and allows for secure attachment. K&N clamp-on universal air filters are washable and reusable.

Accessories

K&N RG-1001WT-L Universal Chrome Filter Product Reviews

I've been a fan of k&n for a long time. From the first filters I purchased for my motorcycle in the 80's to the black hawk helicopter intake filters we used in Iraq, to the cold air intake systems on all my current vehicles. K&N makes super products that are almost maintenance free, filter out everything, and have no noticeable restriction to air flow no matter how dirty they got (provided the filter area is appropriate to your application). I really like the look of this universal filter. It's lightly clear oiled and not red It fits my 400ci Hemi with 90mm throttle body with 4in tube perfectly as is but the adapters will make it fit most 6 or 4cyl. It will flow nicely for any stock application and seems adequate for my 400 cubes :) I was looking to declutter my engine bay without sacrificing performance and this filter achieved both flawlessly. And it looks great too